Patents Assigned to Transportation Design & Technology
  • Patent number: 4027807
    Abstract: A lift device particularly suitable for lifting handicapped persons with or without wheel chairs into a vehicle or building. The lift can be incorporated into the doorway of any given vehicle, or into any step structure within a building. The lift in its stowed position forms the normal steps. The various step elements are moveable and can cooperate to form a platform which can be lowered or raised to any position between the upper and lower level of the steps. A ramp normally hidden under the steps slides forward to allow easy access to the extended platform and a safety flap housed in the ramp flips upward to form an angle stop preventing the wheel chair from rolling backward during platform motion.
    Type: Grant
    Filed: August 20, 1975
    Date of Patent: June 7, 1977
    Assignee: Transportation Design & Technology
    Inventor: Graham R. Thorley